Combining genetic and demographic data for prioritizing conservation actions: insights from a threatened fish species Ivan Paz-Vinas1,2,3, Lise Comte1,2, Mathieu Chevalier1,2,4, Vincent Dubut5, Charlotte Veyssiere1,2, €l Grenouillet1,2, Geraldine Loot3,2 & Simon Blanchet3,1 Gae UMR5174 EDB (Laboratoire Evolution & Diversite Biologique), Centre National de la Recherche Scientifique (CNRS), Ecole Nationale de Formation Agronomique (ENFA), Universite Paul Sabatier, 118 route de Narbonne, F-31062, Toulouse Cedex 4, France 2 UMR 5174 (EDB), UPS, Universite de Toulouse, 118 route de Narbonne, F-31062, Toulouse Cedex, France 3 Centre National de la Recherche Scientifique (CNRS), Station d’Ecologie Exp erimentale du CNRS a Moulis, USR 2936, F-09200, Moulis, France 4 UMR 5245 EcoLab (Laboratoire Ecologie Fonctionnelle et Environnement), CNRS, F-31062, Toulouse, France 5 IMBE – UMR 7263, Aix-Marseille Universite, CNRS, IRD, Centre Saint-Charles, Case 36, 3 place Victor Hugo, F-13331, Marseille Cedex 3, France 1
Keywords Bottleneck, conservation genetics, demographic survey, Parachondrostoma toxostoma, rivers, species distribution models, temporal trends. Correspondence Ivan Paz-Vinas, Laboratoire Evolution et Diversit e Biologique (EDB), UMR 5174 (CNRS – UPS – ENFA), 118 route de Narbonne, F-31062 Toulouse cedex 4, France. Tel: (+33) 5 61 55 67 47; Fax: (+33) 5 61 55 73 27; E-mail: [email protected] Funding Information This study is part of the European project “IMPACT”. This project has been carried out with financial support from the Commission of the European Communities, specific RTD programme “IWRMNET.”
Received: 17 January 2013; Revised: 16 May 2013; Accepted: 19 May 2013
Abstract Prioritizing and making efficient conservation plans for threatened populations requires information at both evolutionary and ecological timescales. Nevertheless, few studies integrate multidisciplinary approaches, mainly because of the difficulty for conservationists to assess simultaneously the evolutionary and ecological status of populations. Here, we sought to demonstrate how combining genetic and demographic analyses allows prioritizing and initiating conservation plans. To do so, we combined snapshot microsatellite data and a 30-year-long demographic survey on a threatened freshwater fish species (Parachondrostoma toxostoma) at the river basin scale. Our results revealed low levels of genetic diversity and weak effective population sizes (
Keywords Bottleneck, conservation genetics, demographic survey, Parachondrostoma toxostoma, rivers, species distribution models, temporal trends. Correspondence Ivan Paz-Vinas, Laboratoire Evolution et Diversit e Biologique (EDB), UMR 5174 (CNRS – UPS – ENFA), 118 route de Narbonne, F-31062 Toulouse cedex 4, France. Tel: (+33) 5 61 55 67 47; Fax: (+33) 5 61 55 73 27; E-mail: [email protected] Funding Information This study is part of the European project “IMPACT”. This project has been carried out with financial support from the Commission of the European Communities, specific RTD programme “IWRMNET.”
Received: 17 January 2013; Revised: 16 May 2013; Accepted: 19 May 2013
Abstract Prioritizing and making efficient conservation plans for threatened populations requires information at both evolutionary and ecological timescales. Nevertheless, few studies integrate multidisciplinary approaches, mainly because of the difficulty for conservationists to assess simultaneously the evolutionary and ecological status of populations. Here, we sought to demonstrate how combining genetic and demographic analyses allows prioritizing and initiating conservation plans. To do so, we combined snapshot microsatellite data and a 30-year-long demographic survey on a threatened freshwater fish species (Parachondrostoma toxostoma) at the river basin scale. Our results revealed low levels of genetic diversity and weak effective population sizes (
